Real-Time Physics Simulation Forum

Hi,

I am new to bullet so i am struggling to google my problem because i don't know what to search.
In my game i have three objects, Body A (rigid body of btRaycast vehicle), Body B( static object), Body C (static object).
Now when body A collides with Body B , bullet physics handles it accuratly.
But when Body A collides with Body C, i want to know what are the forces and impulses acting on body A so that i can change it according to my need and then bullet do its remaining work with that data. Any suggestions how to achieve that?
Thanks in Advance.

Collision callbacks can help you out.
http://www.bulletphysics.org/mediawiki- ... d_Triggers

kloplop321 wrote:Collision callbacks can help you out.
http://www.bulletphysics.org/mediawiki- ... d_Triggers

Thanks for the reply,
i go through your given link, it is useful for collision trigger thats ok. It helps me to make my half work done.
but what about the other half, where i want to change the forces and impulses in the physics engine?

http://bulletphysics.com/Bullet/BulletF ... dBody.html
body->clearForces();
and then
body->applyForce(btVector3(blah,blah,blah),btvector3(0,0,0));
or
body->applyImpulse(btVector3(blah,blah,blah),btvector3(0,0,0));

kloplop321 wrote:http://bulletphysics.com/Bullet/BulletF ... dBody.html
body->clearForces();
and then
body->applyForce(btVector3(blah,blah,blah),btvector3(0,0,0));
or
body->applyImpulse(btVector3(blah,blah,blah),btvector3(0,0,0));

Ok but,
After collision where the impulse and forces are calculated in bullet?
and where do i use these command ? at simulation tick callback ?.
Thanks